EP2425201B1 - Inner tube, particularly for expelling active bodies - Google Patents

Description

The invention relates to a kind of segmented container sleeve within a cartridge. This is referred to below as Bombette. This serves to accommodate one or more active bodies or one or more effect charges in the cartridge or cartridge case and transports the active body during firing.

A bombette is in practice a rigid cylindrically shaped firecracker of cardboard or tightly wrapped or bound paper. They can have a diameter of about 1.5 to 6 cm. In contrast to fireworks bombs, however, bombettes do not have their own emissions or propellant charges. They are fired from a frame with tubes, aluminum or plastic, and with a separate ejection charge. When firing a deceleration fuse is usually ignited, which in turn ignites a Zerlegaradung. Through this, the effect set is ignited and distributed (see http://de.wikipedia.org/wiki/Bombette, http://wiki.feuerwerk.net/index.php/Bombette).

A pyrotechnic active material with ignition and combustion accelerator describes the DE 198 18 337 C1 , In this will be on the DE 83 02 584 U1 Referring to a bombette disclosed with a sleeve closed on one side and comprising a pyrotechnic effect set within the sleeve and a propellant charge at the open end of the sleeve. The open end of the sleeve is completed by a flame-permeable cover.

With an arrangement for igniting and firing pyrotechnic objects deals with DE 2003 10 900 U1 , A bearing used in this case, which can also be designed in extended form as a launching channel, stands with its bottom surface on a solid surface. In the camp is one of an effect set and the ignition and / or ejection part.

The US 6,899,034 B2 discloses a fragmenting projectile for anti-personal protection. Several core particles are incorporated in the projectile, which is closed by a lid. When the projectile hits a target, the projectile penetrates and penetrates the target. The dissolving lid is accelerated after the exit of the projectile from the target including the core particles.

With a bombette applications are also applied, which often serve the non-lethal effect and people are just to irritate. Known missions of this kind are, for example, police operations with demonstrators. In this case, active bodies are fired by means of (special) weapons which contain, for example in the case of irritant cartridges, in each case a certain amount of active substance, such as CS or CN, which are released in the target area. But also be spent active bodies such as a rubber ball, rubber crashing, rubber balancing, color markers, etc.

The disadvantage of these conventional bombettes, however, is that they are fired as massive bodies with bullet properties. As a result, there is an unwanted risk of injury from the bombettes themselves, in particular in relation to the persons in the shooting area. In the flight phase, the bombette also dissolves very late from the active body (s), whereby the trajectory of the active body can be impaired.

The DE 87 07 244 U1 concerns a projectile for the targeted distance use by the police. The projectile body consists of a spongy material and is surrounded by a thin-walled jacket. Furthermore, the body is provided with a filling consisting mostly of water. When the shell bursts, it releases the irritant at the moment of impact. The bullet has against premature destruction of his coat a cartridge surrounded by this coat of paper or a similar lightweight material. The cartridge jacket is formed by attaching longitudinal slots so that it has a significantly lower mass and greater air resistance than the projectile.

The invention therefore arises, starting from the DE 8707244 U1 , the task of achieving a non-lethal spanking of these bodies.

The object is solved by the features of claim 1 and the use by the features of claim 7. Advantageous embodiments are shown respectively in the subclaims.

The invention is based on the idea to slow down the bombette immediately after leaving the ejection tube / barrel, etc. and dropping it to the ground after a few meters so that the trajectory of the active body (s) is no longer affected by the bombettes and the effect the bombette is limited only to the launching of the active body (s), in order to avoid injuries etc. of persons.

For this purpose, the geometric shape of the Bombette is changed so that the Bombette is no longer a rigid cylindrical part, but is molded, with the ends of a molding (paper, cardboard, cardboard, etc.) overlap in the rule.

The final shaping takes place during installation in the cartridge case or cartridge, wherein the approximately cylindrically shaped but non-rigid bombette is embedded in the cartridge and should at least partially overlap in / at the ends. The Bombette thus formed takes in turn, in a known manner the / the active body.

The cartridge is conventionally ignited and the bombette accelerated out of this and driven by a barrel or the like. After the escape of the bombette from the barrel unfolds this at their overlaps, so now the bombette is braked by the unfolding / pulling apart of the segments (parts) at the overlap. The active body (s) are released and fly on as independent parts or parts in the target direction. The ignition of the active body is, if necessary, already ensured in the cartridge.

Due to the air resistance "erecting" parts / segments of the Bombette falls this after a few meters to the ground, and it forms due to their shape (not rigid) and effect (without active body) no more dangerous fragment. The bombettes can not reach the target area of the active body in turn.

The parts of the Bombette are still made of cardboard material, which keeps costs low and meets the requirements of environmental compatibility and biodegradability. Due to the structural design of the Bombettenteile a direct ignition of the active body can be done by the propellant charge cartridge, which allows an ignition already in the gun barrel / ejection tube. The material of the Bombette but can also be suitable plastic or suitable metal, which fulfills this function of unfolding, especially if a Nichtletalität the Bombette is not mandatory.

The Bombette is designed so that rigid active mass, such. B. rubber ball, rubber crashing, rubber balancing, color markers, etc. and ignitable active materials can be used. For the ignitable modification ignition transmission holes in the bomb bottom and possibly a Zündgazescheibe be provided. Ignitable active compounds are u. a. CS, CN pepper, smoke, blast, flash and filament.

Reference to an embodiment with drawing, the invention will be explained in more detail.

Fig. 1

in einer Schnittdarstellung einen Zusammenbau einer Bombette,

Fig. 2

eine Schnittdarstellung durch eine Patrone mit Bombette,

Fig. 3

die Bombette im funktionsgemäßen Gebrauch,

Fig. 4

mögliche Formen eines auseinandergezogenen Bombetten- Formteils.

It shows:

Fig. 1

in a sectional view an assembly of a Bombette,

Fig. 2

a sectional view through a cartridge with Bombette,

Fig. 3

the Bombette in proper use,

Fig. 4

possible forms of an exploded Bombetten- molding.

In Fig. 1 20 is a Bombette, which consists of a Kümpel or Liderungsmanschette 1, which can be reinforced with a disc 2. On this, a moldable material as a molded part 3, segmented, ie consisting of one or more parts / segments attached. The sleeve 1 serves to seal (Liderung) a pressure chamber 11 of a cartridge 21 for bombette 20 ( Fig. 2 ).

The molded part 3 is shaped such that it results in an at least split hollow cylinder 22 when introduced into the cartridge 21. In these active body 6 are introduced.

For the embodiment with ignition the bombette 20 has a bottom provided with holes 23. If necessary, under the / the active body 6 a Zündgazescheibe 4 and a perforated disc 5 are placed. The ignition of / the active body 6 erflogt here by a propellant cartridge 10 via the Zündgazescheibe 4. An additional priming should be omitted here. Above the Bombette 20 is a lens 8 and the cartridge 21 sealing potting 9 ( Fig.2 ).

Fig. 3 shows such Bombette 20 in function. The segmented molded part 3 separates and builds up a resistance to the air. At the same time, the segmented molded part 3 releases the active bodies 6, which in turn continue to fly.

Fig. 4 shows form variants of the unfolded molded part 3 of a Bombette 20. In the left diagram is schematically from the in Fig. 1 shown now unfolded Bombette - molded part 3 (two segments) shown. The right-hand illustration shows an unfolded molded part 3 with a segment.

Claims (13)

1. Inner tube (20) for delivering one or more active bodies (6), being formed by a mouldable material as a moulded part (3) which comprises one or more parts or segments, the final moulding being carried out during installation in a cartridge (21) and it being possible for the approximately cylindrical shaped but non-rigid inner tube (20) to be embedded in the cartridge (21), characterized in that the parts or segments at least partly overlap in or at the ends.
2. Inner tube according to Claim 1, characterized in that the mouldable material is paper, paperboard or the like.
3. Inner tube according to Claim 1, characterized in that the mouldable material is a suitable plastic or a suitable metal which can unfold.
4. Inner tube according to one of Claims 1 to 3, characterized in that it is constructed such that rigid active compounds, such as rubber ball, rubber scrap, rubber bullets, ink markers, etc. or ignitable active compounds in the form of active bodies (6) can be used.
5. Inner tube according to Claim 4, characterized in that for the ignitable modification, it is necessary to provide ignition transfer holes (5) in the bottom (23) of the inner tube and, if appropriate, an ignition gas disc (4).
6. Inner tube according to Claim 4, characterized in that ignitable active compounds are, amongst others, CS, CN, pepper, smoke, firecracker, flash and light-emitting bodies.
7. Cartridge (21) having an inner tube (20) according to Claims 1 to 6, characterized in that as the moulded part (3) is introduced into the cartridge (21), an at least divided hollow cylinder (22) results.
8. Cartridge according to Claim 7, insofar as dependent on Claim 5, characterized in that the necessary ignition of the active body or bodies (6) is carried out by a propellant cartridge (10) via the ignition gas disc (4).
9. Cartridge according to Claim 7 or 8, characterized in that a sleeve (1) with a sealing function is provided on the inner tube (20).
10. Cartridge according to one of Claims 7 to 9, characterized in that it can be discharged by a weapon.
11. Cartridge according to Claim 10, characterized in that after the inner tube (20) has emerged from the barrel, it unfolds at its overlaps and is braked as a result of the parts or segments folding open or pulling apart at the overlap.
12. Cartridge according to Claim 11, characterized in that the active bodies (6) are released and fly onward in the direction of the target as independent parts/an independent part.
13. Cartridge according to Claim 11 or 12, characterized in that the parts or segments of the inner tube (20) are erected by the air resistance, so that the inner tube (20) falls to ground after a few metres, not forming any dangerous fragment on account of its non-rigid shape and action without active bodies.

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